CVE-2025-41744
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedSprecher Automations SPRECON-E series uses default cryptographic keys that allow an unprivileged remote attacker to access all encrypted communications, thereby compromising confidentiality and integrity.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe SPRECON-E series uses hardcoded default cryptographic keys for encrypting all communications. An unauthenticated remote attacker can use these known keys to decrypt, read, and modify all traffic between devices, completely bypassing the encryption layer.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE dataall versionsall versionsall versionsCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify SPRECON-E devices on your networkInventory your network for Sprecher Automation SPRECON-E series devices, specifically looking for models C, P, or T3 firmware variants. Check device labels, management interfaces, or network scan results for these product identifiers.Affected if Any SPRECON-E C, P, or T3 firmware device is present on the network, regardless of version.
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Confirm firmware variant and versionAccess the device management interface or check device documentation to identify the exact firmware variant (C, P, or T3) and version number.Affected if The device is running any version of SPRECON-E C, P, or T3 firmware - all versions are affected.
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Verify encryption is enabled for device communicationsCheck the device configuration settings for communication security options. Look for TLS, SSL, or encrypted communication settings in the device management panel or configuration files.Affected if Encrypted communications are enabled, because the vulnerability is that hardcoded keys are used for this encryption layer.
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Inspect communication traffic for predictable encryption patternsCapture and analyze network traffic between SPRECON-E devices using a packet sniffer. Look for encrypted sessions and note if traffic patterns suggest known cryptographic keys may be in use.Affected if Encrypted traffic exists and analysis reveals consistent cryptographic patterns across sessions, indicating default keys may be in use.
A defender is affected if any Sprecher Automation SPRECON-E C, P, or T3 device with encrypted communications is present on their network, since all versions use hardcoded default cryptographic keys.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataContact Sprecher Automations for vendor-supplied patches or firmware updates that replace default keys. Immediately isolate affected devices on separate network segments and monitor for indicators of compromise until remediation is complete.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-41744 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-41744 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data